概念
RJ45 Pinout for the RS-485 Port of the MP-C Controller
This section provides the RJ45 pinout for the MP-C controller's RS-485 port.
The number of RS-485 ports with RJ45 interface differ between the different controller models.
Regarding the differences in the set of RS-485 ports, the MP-C models can be divided into the following two categories:
Models without “-M” in the product name:
MP-C-15A, MP-C-18A, MP-C-18B, MP-C-24A, and MP-C-36A
Models with “-M” in the product name:
MP-C-24A-M and MP-C-36A-M
有关更多信息，请参阅 MP-C Models .
The MP-C-15A, -18A, -18B, -24A, and -36A models have one RS-485 port with RJ45 interface, which is labeled RS-485 Com A.
The MP-C-24A-M and -36A-M models have no RS-485 port with RJ45 interface.
The wiring recommendations for the RS-485 port depend on the type of network the port iss are used for. 有关更多信息，请参阅 Communication Port Wiring .
|
RJ45 Pin |
Description |
|
1 |
Not connected |
|
2 |
Not connected |
|
3 |
RS485+ (A) |
|
4 |
+24 VDC |
|
5 |
Ground |
|
6 |
RS485– (B) |
|
7 |
+24 VDC |
|
8 |
Ground |
Wiring
Communication Port Wiring
MP-C Communication Ports
Communication Ports on MP-C-15A, -18A, -18B, -24A, and -36A
Communication Ports on MP-C-24A-M and -36A-M
MP-C Sensor Bus
MP-C Modbus
MP-C Models